Exercise 4 - due at 11:59:00 PM EST on Sunday, 02/06/2022 through Canvas. 

You may solve all the poblems in the same file. 
Each of these problems might take you between 10 and 20 minutes (not counting testing).

1. Read in 3 integers, x, y and z. Use output cascading (one cout statement) to print the following truth values:

a. y is smaller than x
b. z is not 0
c. Is the value of x a 3 digit number?
d. Are exactly two of the values positive?

C++ would print 1 for tue and 0 for false here.

2. Read in 3 floating point numbers and print if their sum is between 100 and 250 (inclusive) or not.

3. Write a C++ code snippet that displays a menu to the user, and reads in a character as a choice. If the choice were 'a', read in 2 integers. If both numbers are greater than 100, add them. Otherwise, multiply them. If the choice were 'b', read in 3 doubles. If any of them is 0, print their sum. Otherwise, print their product. 

4. The in-class example for the pass/fail if...else statement (done on Wednesday) chooses to equally weight the midterms and the final. Modify the code snippet to change that by
a. Reading in 3 values for exams instead of 1: mid1, mid2, and fin
b. Calculae the total by just adding these 3 variables to "total" instead of "exam"
c. Calculate the mileAvg as ((mid1/12 + mid2/12 + fin/15)/3)*100

5. Write a C++ code snippet to read in a time (only the hour, in millitary time). If the time is before noon, print "Good Morning". If it is between noon and 6 PM, print "Good Afternoon". Otherwise, print "Good Evening".

Sample Outputs (multiple runs shown for certain problems):

Problem 1:

Enter the value of x: 5
Enter the value of y: 13
Enter the value of z: -4

(a): 0	(b): 1	(c): 0	(d): 1

Problem 2:

Run 1:
Enter 3 floats:
41.25
18.96
65.74

The sum is between 100 and 250

Run 2:
Enter 3 floats:
1.25
8.96
5.74

The sum is not between 100 and 250

Problem 3:

Run 1: 

Please choose between options a and b.
a. Integer calculations
b. Floating point calculations
Enter choice: a

Enter 2 integers: 110
140
The result is 250

Run 2:

Please choose between options a and b.
a. Integer calculations
b. Floating point calculations
Enter choice: a

Enter 2 integers: 15
120
The result is 1800

Run 3:  

Please choose between options a and b.
a. Integer calculations
b. Floating point calculations
Enter choice: b

Enter 3 floating point numbers: 2.5
15.8
3.56
The result is 140.62

Run 4:

Please choose between options a and b.
a. Integer calculations
b. Floating point calculations
Enter choice: b

Enter 3 floating point numbers: 12.98
0
-4.876
The result is 8.104

Problem 4:

Run 1:
Enter the grades (CP, PE, DS, Mid1, Mid2, Fin, HW):  7 8 7 10 11 12 29
You passed! Congratulations!
Your grade was 86
Your test average was 85

Run 2:
Enter the grades (CP, PE, DS, Mid1, Mid2, Fin, HW):  7 6 6 11 11 11 11
Please try again!
Your grade was 65
Your test average was 85.5556

Run 3: 
Enter the grades (CP, PE, DS, Mid1, Mid2, Fin, HW):  5 7 7 8 8 9 35
Please try again!
Your grade was 81
Your test average was 64.4444

Problem 5:

Run 1:
Enter the time: 10
Good Morning

Run 2:

Enter the time: 21
Good Evening